Flavor origin of dark matter and its relation with leptonic nonzero θ
                            13 and Dirac CP phase δ

Bhattacharya, Subhaditya; Karmakar, Biswajit; Sahu, Narendra; Sil, Arunansu

doi:10.1007/jhep05(2017)068

Cited by 28 publications

(17 citation statements)

References 98 publications

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“…Additionally, we also discuss the aspects of leptogenesis [45][46][47][48][49] from the CP-violating decays of RHNs in this A 4 based type-I seesaw scenario in line with observations [50][51][52][53][54][55][56][57]. In doing so, since the involvement of the neutrino Yukawa matrix in the charged-lepton mass diagonal basis is necessary, the specific flavor symmetric construction of it is expected to play an important role.…”

Section: Jhep12(2021)051mentioning

confidence: 63%

Flavored leptogenesis and neutrino mass with A4 symmetry

Datta

Karmakar

Sil

2021

J. High Energ. Phys.

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We propose a minimal A4 flavor symmetric model, assisted by Z2× Z3 symmetry, which can naturally takes care of the appropriate lepton mixing and neutrino masses via Type-I seesaw. It turns out that the framework, originated due to a specific flavor structure, favors the normal hierarchy of light neutrinos and simultaneously narrows down the range of Dirac CP violating phase. It predicts an interesting correlation between the atmospheric mixing angle and the Dirac CP phase too. While the flavor structure indicates an exact degeneracy of the right-handed neutrino masses, renormalization group running of the same from a high scale is shown to make it quasi-degenerate and a successful flavor leptogenesis takes place within the allowed parameter space obtained from neutrino phenomenology.

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Section: Jhep12(2021)051mentioning

confidence: 63%

Flavored leptogenesis and neutrino mass with A4 symmetry

Datta

Karmakar

Sil

2021

J. High Energ. Phys.

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“…Presence of scalar triplet may also pave the path to discover this model through hadronically quiet dilepton channel at LHC. We would also like to add here that if the DM (singlet-doublet admixture) including the SM particles are charged under an additional flavour symmetry, say A 4 , then non-zero value of θ 13 can be obtained from the flavour charge of DM, which has been elaborated in [45,46]…”

Section: Discussionmentioning

confidence: 99%

Mini Review on Vector-Like Leptonic Dark Matter, Neutrino Mass, and Collider Signatures

et al. 2019

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We review a class of models in which the Standard Model (SM) is augmented by vector-like leptons: one doublet and a singlet, which are odd under an unbroken discrete Z2 symmetry. As a result, the neutral component of these additional vector-like leptons are stable and behave as dark matter. We study the phenomenological constraints on the model parameters and elucidate the parameter space for relic density, direct detection and collider signatures of dark matter. In such models, we further add a scalar triplet of hypercharge two and study the consequences. In particular, after electro weak symmetry breaking (EWSB), the triplet scalar gets an induced vacuum expectation value (vev), which yield Majorana masses not only to the light neutrinos but also to vector-like leptonic doublet DM. Due to the Majorana mass of DM, the Z mediated elastic scattering with nucleon is forbidden and hence allowing the model to survive from stringent direct search bound. The DM without scalar triplet lives in a small singlet-doublet leptonic mixing region (sin θ ≤ 0.1) due to large contribution from singlet component and have small mass difference (∆m ∼ 10 GeV) with charged companion, the NLSP (next to lightest stable particle), to aid co-annihilation for yielding correct relic density. Both these observations change to certain extent in presence of scalar triplet to aid observability of hadronically quiet leptonic final states at LHC, while one may also confirm/rule-out the model through displaced vertex signal of NLSP, a characteristic signature of the model in relic density and direct search allowed parameter space.

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“…For example [208,209], with vectorlike singlet (χ 0 )-doublet (ψ) dark matter particle spectrum assisted with additional scalars such as (φ, η charged under a global U (1) flavor symmetry) the interaction between dark matter and neutrino sector can be written as…”

Section: A Flavor Symmetry and Dark Mattermentioning

confidence: 99%

Discrete Flavor Symmetries and Lepton Masses and Mixings

Chauhan¹,

Dev²,

Dziewit³

et al. 2022

Preprint

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We discuss neutrino mass and mixing models based on discrete flavor symmetries. These models can include a variety of new interactions and non-standard particles such as sterile neutrinos, scalar Higgs singlets and multiplets. We point at connections of the models with leptogenesis and dark matter and the ways to detect the corresponding non-standard particles at intensity and energy frontier experiments.

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Flavor origin of dark matter and its relation with leptonic nonzero θ 13 and Dirac CP phase δ

Cited by 28 publications

References 98 publications

Flavored leptogenesis and neutrino mass with A4 symmetry

Flavored leptogenesis and neutrino mass with A4 symmetry

Mini Review on Vector-Like Leptonic Dark Matter, Neutrino Mass, and Collider Signatures

Discrete Flavor Symmetries and Lepton Masses and Mixings

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